Automatic cut-off



I. M. CHANNELL AUTOMATIC CUT-OFF Sept. 30 1924 Filed May 29, 1922'INVENTOR ATTOR N EY Patented ept. 3i 1&243.

entree ISAAC M. CHANNELL, TH DUQUESNE, PENNSYLVANIA.

AUTOMATIC OUT-OFF.

Application filed. May 29, 1922. Serial No. 564,429.

To all whom it may concern: I

Be it known that 1, Isaac M. CHANEELL, a citizen of the United States,residing at Duquesne, in the county of Allegheny and State oiPennsylvania, have invented new and useful Improvements in AutomaticCut- Oiis, of which the following is a specification.

This invention relates tocontrol devices, and more particularly to whatI term an automatic cut-off for use in connection with a flush tank.

One of the main objects of the invention is to provide a device ofsimple construction and operation which may be produced at small costand can be readily applied. A further object is to provide a devicewhich will serve to effectually prevent water from flowing into the tankafter the tank has become filled to its normal height. Further objectswill appear from the detailed description.

Inthe drawings Figure 1 is a side view of the device as applied.

Figure 2 is a top plan view.

Figure 3 is a section through the valve casing and associated parts.

The device includes a hollow casing or head 1 which is secured on theupper end of a water supply pipe 2 passing through the bottom of tank A.Head 1 is provided with a neck 3 in which is secured the lower portionof a cylindrical body 4 having a central bore 5. The upper portion ofbody 4 is tapered at 4 to fit into a recess provided in a threaded neck7 carried by a block 6 at the upper end of a cylindrical casing 8 whichfits about body 4. By raising casing 8 the upper end of body 4 isuncovered or opened to permit water to flow from said body into theupper portion of the casing.

A main lever 9 is pivoted at 10 in block 6 and is connected at one endby links 11 to a supplemental lever 12 which is pivoted at 13 in theblock at the opposite side there of from the pivot of lever 9. A rod 14-is secured to the outer end of lever 12 and carries a ball or float Fwhich is raised by the water as it rises in tank A.

Lever 9 is pivotally connected at its central portion, by links 15, toneck 3 of the head or casing 1, the block being provided with a verticalslot to accommodate the pin 15 which secures the upper ends of the linksto the lever. A Weight 16 is suspended from the other end of lever 9 andacts to normally force casing 8 downwardly so as to hold neck 7 of block6 seated over the upper end of body 4 thus effectually cutting oilsupply of water to the upper end of the casing. When the water isdischarged from tank A the float F causes downward movement of lever 12about its pivot 13. This results in the end of lever9 remote from weight16 being depressed through the medium of links 11 thus raising casing 8,the pin 15 acting as a fulcrum for lever 9 and the casing being liftedby means of pivot 10 and block 6. This uncovers the upper end of body 4so as to permit water to flow into the upper portion of casing 8, thiswater flowing through an outlet tube 17 which communicates with thecasing adjacent the lower end of neck 7, the lower end of this tubebeing positioned a short distance above the bottom of tank A. When thefloat F has been returned to normal position so as not to exert anydownward pull upon lever 9, weight 16 acts to hold the easing 8 inlowered position thus positively preventing water from flowing throughbody 4. This provides simple and eflicient means whereby leakage andconsequent waste of water is eliminated.

To facilitate raising and lowering of casing 8, pins 15 and 10 are aloose fit through lever 9 so as to permit relative movement betweenthese pins and the lever, as will be readily understood by those skilledin the art. If desired, the lever 9 can be provided with a slot toaccommodate either pin and permit movement thereof longitudinally of thelever, though ordinarily this is not necessary as casing 8 is moved buta short distance in either direction and the relative movement betweenthe pins and the lever is very slight.

What I claim is 1. In an automatic cut-oii. a water receiving head, abody secured in said head and provided with a longitudinally extend ingbore, a casing fitting about said body, a member in said casingpositioned to seat upon and close the upper end of said body when thecasing is lowered, the casing being provided with an outlet openingbelow and adjacent to said member, a block carried by the closingmember, a lever pivoted in said block, a second lever pivoted in theblock below the pivot point of the first mentioned lever and at theopposite side of the block therefrom, links pivotally connecting saidlevers, a rod""-'secured to the second inentioned lever, a float carriedby said rod, links connecting the first mentioned lever and the head,said links being pivota-lly connected to said first mentioned leverbetween the pivot point thereof and the links connecting the levers, anda weight suspended from the first mentioned-lever at the opposite endsthereof from the links which connect the levers.

"2.111 an automatic cut-off, a water rece'iving head, a body secured insaid head and having a longitudinally extending bore, a casing fittingabout said body, a block having a depending neck secured in said casingand positioned and adapted to fit about the upper portion of said bodyso as to close the bore through the same when the casing is inloweredposition, a main operating lever pivoted 1'11 the block at oneside thereof, a supplemental lever pivoted 1n the block at the otherside thereof and below said main le er, links connecting saidsupplemental lever to the main lever at one end thereof a rod secured tothe supplemental lever, 21 float carried by said rod, links pivotallyconnecting the head and the main lever between the first mentioned linksand the pivot point of said main lever, and a ISAAC M. CHANNELL. v

